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annotate target-utils/libc/strncmp.c @ 405:ed9b67e7e741

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fcup-smsend: fixed bug in the handling of -W with no dest address argument The original code checked for argv[optind+1] when argv[optind] is NULL; on most systems this bogus code gets the first line of the environment, which is clearly not what we are after. Fixed the code to check argc instead.
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 11 Aug 2018 18:59:54 +0000
parents 7fb62fc724dc
children
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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7fb62fc724dc target-utils/libc: beginning of newlib-ectomy
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1 /*
7fb62fc724dc target-utils/libc: beginning of newlib-ectomy
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2 * Compare strings (at most n bytes): s1>s2: >0 s1==s2: 0 s1<s2: <0
7fb62fc724dc target-utils/libc: beginning of newlib-ectomy
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3 */
7fb62fc724dc target-utils/libc: beginning of newlib-ectomy
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4
7fb62fc724dc target-utils/libc: beginning of newlib-ectomy
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5 strncmp(s1, s2, n)
7fb62fc724dc target-utils/libc: beginning of newlib-ectomy
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6 register char *s1, *s2;
7fb62fc724dc target-utils/libc: beginning of newlib-ectomy
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7 register n;
7fb62fc724dc target-utils/libc: beginning of newlib-ectomy
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8 {
7fb62fc724dc target-utils/libc: beginning of newlib-ectomy
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9 while (--n >= 0 && *s1 == *s2++)
7fb62fc724dc target-utils/libc: beginning of newlib-ectomy
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10 if (*s1++ == '\0')
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11 return(0);
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12 return(n<0 ? 0 : *s1 - *--s2);
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13 }