48 lines
916 B
C
48 lines
916 B
C
#include "exec.h"
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#ifdef LIBSCOMP_FREESTANDING
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int strcmp(const char *s1, const char *s2) {
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while (*s1 == *s2) {
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if (!*s1)
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break;
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s1++;
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s2++;
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}
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return *s1 - *s2;
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}
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#else
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# include <string.h>
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#endif
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struct libscomp_cmd *hg_bsearch(const char *name,
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const struct libscomp_cmd_store *cmds) {
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size_t lower = 0, upper = cmds->len-1;
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size_t i;
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int rel;
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while (upper >= lower) {
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i = (upper - lower)/2 + lower;
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rel = strcmp(name, cmds->arr[i].name);
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/* x > cmds[i] */
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if (rel > 0)
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lower = i + 1;
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/* x < cmds[i] */
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else if (rel < 0)
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upper = i - 1;
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else
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return &cmds->arr[i];
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}
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return NULL;
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}
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int libscomp_exec(const struct libscomp_cmd_store *cmds,
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struct libscomp_line *ln, void *ptr) {
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struct libscomp_cmd *cmd;
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cmd = hg_bsearch(ln->buf[ln->name], cmds);
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if (!cmd)
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return LIBSCOMP_NOT_FOUND;
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return cmd->exec(ln,ptr);
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}
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